International investors should treat TDnet as the first stop for Japanese listed-company announcements, but not as the only stop. The English Company Announcements Service gives fast access to many TDnet items, especially for Prime Market companies, while Listed Company Search, EDINET and company IR sites are still needed when the English page is partial, delayed or outside the current display window.
That distinction matters in 2026. Tokyo Stock Exchange says domestic Prime Market companies have been required since April 2025 to disclose financial results and timely disclosure information simultaneously in Japanese and English, but English excerpts or summaries may be acceptable and English coverage may still be incomplete. For investors reading dividend forecasts, buyback announcements, governance reports or earnings revisions, the workflow is therefore: find the English disclosure quickly, check whether it is full or partial, then verify the source record and filing history.
Key Takeaways
- TDnet is Japan's exchange disclosure network for timely corporate announcements, while EDINET is the statutory filing system operated by the Financial Services Agency.
- The JPX English Company Announcements Service is useful for fast English access, but current timely disclosures are displayed for 31 days and may not cover every Japanese TDnet item.
- Listed Company Search is better for company-by-company history because JPX says it provides timely disclosure and filing information and is updated around 1:00 a.m. each day.
- The June 30, 2026 JPX English-disclosure availability workbook listed 3,709 companies, including 1,552 Prime, 1,563 Standard and 594 Growth companies.
- For Prime companies in that workbook, earnings reports were marked available or partially available for 1,546 of 1,552 records, but annual securities reports were still unavailable for 1,119 Prime records.
What TDnet English Disclosures Cover In 2026
TDnet stands for Timely Disclosure Network. JPX describes it as the system that digitizes the route from filing disclosure documents with Tokyo Stock Exchange to public posting, listed-company search access, media distribution and information-vendor distribution. In practical terms, it is the place where exchange timely disclosures first become official enough to matter for investors.
The English entry point is JPX's Company Announcements Service. TSE says that service provides English-language timely disclosure information published by listed companies via TDnet, including full texts, excerpts or summaries. The same page warns that English information may not fully cover Japanese TDnet disclosures and that English information may be published later than Japanese information.
The April 2025 Prime Market rule made English disclosure materially more useful. JPX's English Disclosure via TDnet page says domestic Prime Market companies must disclose financial results and timely disclosure information simultaneously in Japanese and English, and that disclosure via TDnet is the route for those English materials. The article is not saying every English file is a complete translation. JPX explicitly permits an excerpt or summary for the mandatory English disclosure.
That is why English TDnet work should always keep three labels in view:
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| Label or status | What it means for investors | Data date or rule date | Source |
|---|---|---|---|
| `[Summary]` | The English material is an excerpt or summary of the Japanese material, so check the source Japanese item when details matter. | Accessed 2026-07-29 | JPX Company Announcements Service |
| `[Delayed]` | The English material was published after the Japanese disclosure day. It is useful, but not the first disclosure timestamp. | Accessed 2026-07-29 | JPX Company Announcements Service |
| `[Updated]` | The English material has been updated. Compare it with the earlier version when the change is material. | Accessed 2026-07-29 | JPX Company Announcements Service |
| `Partially available` | JPX's workbook note defines this as English excerpts being available or only some documents being available in English. | 2026-06-30 | JPX availability workbook |
| `Unavailable` | JPX's workbook note defines this as English disclosure being unavailable. | 2026-06-30 | JPX availability workbook |
The market implication is simple: English TDnet is now good enough to be part of the first-pass screen for Prime companies, but it is not a substitute for source verification. ATG Press made the same point in a narrower setting in its guide to Japan ex-dividend dates, record dates and yutai eligibility: official market infrastructure is useful only when the investor understands which record each system is actually showing.
Free Public Workflow: Latest, Archive And Statutory Filings
Use the public tools in layers. The latest English announcement page is fast, Listed Company Search is the company-history layer, and EDINET is the statutory-filing layer. A company's own English IR page is a useful mirror, but it should not replace official filing checks.
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| Research task | First public source to check | What it is best for | Main limitation | Source |
|---|---|---|---|---|
| Latest English timely announcement | JPX Company Announcements Service | Recent English TDnet materials, including full texts, excerpts or summaries | JPX says timely disclosure information is available for 31 days and English coverage may be incomplete | JPX Company Announcements Service, accessed 2026-07-29 |
| Latest Japanese timely announcement | Company Announcements Disclosure Service | Japanese TDnet source record and first disclosure timing | Japanese-only interface and documents | JPX Company Announcements Service, accessed 2026-07-29 |
| Company disclosure history | Listed Company Search | Basic listed-company data, timely disclosures, filing information and corporate governance information | JPX says the service updates around 1:00 a.m.; use Company Announcements Service for latest information | JPX Listed Company Search, accessed 2026-07-29 |
| Securities reports and large-shareholder filings | EDINET | Statutory disclosure under the Financial Instruments and Exchange Act | FSA says submitted documents are written in Japanese, browser translation accuracy is not assured, and English annual securities report translations are voluntary | FSA EDINET, accessed 2026-07-29 |
| Machine-readable paid feed | TDnet API or TDnet on Snowflake | Automated acquisition, document links, PDFs, XBRL and index fields | Paid production access; public test data is dummy data | JPX paid information service pages, accessed 2026-07-29 |
A practical workflow looks like this:
- Search the English Company Announcements Service for the company code, company name or event keyword.
- If the title is marked `[Summary]`, `[Delayed]` or `[Updated]`, preserve that label in your notes.
- Open Listed Company Search for the same issuer to check whether older announcements, governance reports or inspection documents change the context.
- Use EDINET for statutory filings, especially annual securities reports, extraordinary reports and large-shareholder reports.
- Go to the issuer's English IR site only after the official system check, then compare whether the company-posted English material is full, partial or delayed.
For governance screens, the workflow pairs naturally with data tools. ATG Press previously covered how J-Quants Pro ownership data can sharpen Japan governance screening, but ownership data is still a screen. TDnet and EDINET are where investors go next to verify the announcement, policy or filing behind the screen.
What The June 2026 JPX Availability List Shows
JPX's Availability of English Disclosure Information by Listed Companies page says the list is designed to show whether listed companies disclose information in English, including financial results, corporate actions and notices of general meetings. The page says the list is updated on or around the 15th day of each month based on responses received by the end of the previous month.
The workbook dated June 30, 2026 is especially useful because it does not just say whether a company has English disclosure. It also separates document type, disclosure status, timing, channel and English IR website links. Local parsing of the official workbook retained in this run found 3,709 listed-company records.
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| JPX availability measure | Count | Definition or scope | Data date | Source |
|---|---|---|---|---|
| Total company records in workbook | 3,709 | Records with company code, company name and market segment | 2026-06-30 | JPX availability workbook |
| Prime Market records | 1,552 | Market segment marked Prime | 2026-06-30 | JPX availability workbook |
| Standard Market records | 1,563 | Market segment marked Standard | 2026-06-30 | JPX availability workbook |
| Growth Market records | 594 | Market segment marked Growth | 2026-06-30 | JPX availability workbook |
| Prime earnings reports marked available | 914 | Workbook status for earnings reports | 2026-06-30 | JPX availability workbook |
| Prime earnings reports marked partially available | 632 | Workbook status for earnings reports | 2026-06-30 | JPX availability workbook |
| Prime corporate information marked available | 1,262 | Workbook status for material corporate information | 2026-06-30 | JPX availability workbook |
| Prime corporate information marked partially available | 241 | Workbook status for material corporate information | 2026-06-30 | JPX availability workbook |
| Prime annual securities reports marked unavailable | 1,119 | Workbook status for annual securities reports | 2026-06-30 | JPX availability workbook |
The important conclusion is not that English disclosure is now perfect. It is that the Prime Market rule has made English discovery far more practical for the two categories investors check most often: earnings reports and material corporate information. The same workbook still shows a much weaker English record for annual securities reports, which is why EDINET and company IR sites remain part of the workflow.
How To Use TDnet For Dividends, Buybacks And Governance
Dividend and capital-return research is where TDnet becomes a daily operating tool rather than a background database. JPX's TDnet API Service description lists financial statements, earnings forecast revisions, dividend forecasts, issuance of shares or share options, share buybacks and PR information among the disclosure information distributed through the paid feed. Public investors can still use the free web services, but the same disclosure categories define what to look for.
For dividend work, begin with the latest earnings release and any dividend-forecast revision. Then check whether the company separately announced a dividend policy, record date, commemorative dividend, change in shareholder-return policy or yutai change. A shareholder benefit, or yutai, is a Japanese program that may provide gifts, vouchers or services to eligible shareholders; it is not the same as a cash dividend. When a yutai change is relevant, the research should connect the benefit-program document to the company's disclosed capital-allocation policy rather than assuming the saved cost automatically becomes a higher dividend.
For buyback work, find the board authorization first, then track progress and cancellation announcements. Japanese companies may acquire treasury shares and later cancel some or all of them, so the investor needs the authorization amount, maximum share count, acquisition period, execution updates and cancellation treatment. TDnet is a discovery path. The corporate claim still belongs to the company's official disclosure.
For governance work, start with the corporate governance report and the latest capital-policy disclosures. That is where English availability can be uneven. The better process is to combine the company announcement, Listed Company Search, EDINET and the issuer's English IR page, then note which document is the governing source. ATG Press's coverage of Japan's corporate-governance code and growth investment explains why investors should separate governance language from measurable capital allocation.
Paid TDnet Data Feeds Are Different From Public Search
The public TDnet and JPX pages are enough for many manual checks. They are not the same as a licensed data feed.
JPX Market Innovation & Research describes the paid TDnet API as a direct distribution service that lets subscribers acquire timely disclosure information for the past five years by sending requests. It lists index fields such as security code, stock abbreviation, disclosure date and time, disclosure number, title, public item code and file flags. It also says the test server in the public Swagger specification returns dummy data, so it should not be mistaken for production disclosure coverage.
JPX also offers TDnet on Snowflake, which distributes disclosure links and index information through Snowflake. The service page separates semi-real-time, five-year history, T+1 and index-only products. That structure is useful for funds, data vendors and research teams that need systematic ingestion, but it does not change the verification rule: public article claims should cite the company announcement or official filing, not a chart, screen or vendor feed alone.
Common Mistakes To Avoid
First, do not assume the English version is complete. The Company Announcements Service itself says English materials may be full texts, excerpts or summaries, and the availability workbook defines partial availability as excerpts or only some documents being available in English.
Second, do not confuse TDnet and EDINET. TDnet is the exchange timely-disclosure route. EDINET is the statutory filing system under the Financial Instruments and Exchange Act. The FSA says EDINET documents are written in Japanese, browser translation accuracy is not assured, and English translations of annual securities reports are not a legal requirement.
Third, do not treat the issuer's English IR site as the timestamp of record. Company websites are useful for full English documents and presentations, but the official disclosure trail may sit in TDnet, Listed Company Search or EDINET. The order of checking matters when a material fact, dividend revision or buyback is time-sensitive.
Fourth, do not screen only for companies with perfect English coverage. Smaller Standard and Growth companies may have weaker English disclosure but still publish material Japanese filings. The absence of English coverage is a research friction point, not proof that there is no disclosure.
A Filing Checklist For International Investors
Before relying on a Japanese company disclosure, record these fields in your research note:
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| Field to record | Why it matters | Example of acceptable note | Source to verify |
|---|---|---|---|
| Company name and code | Prevents confusion between subsidiaries, ADRs and ordinary shares | Company name, four-character TSE code, market segment | Listed Company Search |
| Disclosure date and time | Establishes the sequence of material information | Local JST date and TDnet time | Company Announcements Service or Japanese TDnet record |
| English coverage status | Shows whether the English file is complete, partial, delayed or updated | Full English text, `[Summary]`, `[Delayed]`, `[Updated]` or unavailable | Company Announcements Service and JPX availability list |
| Governing source document | Separates an official filing from a company presentation or article | TDnet announcement, EDINET annual securities report, governance report | TDnet, Listed Company Search, EDINET |
| Capital-return item | Prevents mixing dividend forecasts, buyback authorizations and cancellations | Dividend forecast revision, share repurchase authorization, cancellation of treasury shares | Company announcement and follow-up disclosures |
| Investor caveat | Keeps analysis honest when translation or English coverage is partial | English excerpt checked against Japanese source record | EDINET or Japanese TDnet disclosure |
The best version of this process is boring by design. It creates a paper trail from the English headline to the official Japanese record and then to the older filing history. That trail is what lets investors compare Japan's changing disclosure practices without over-reading a summary or missing a later correction.
Continue Your Japan Equity Research
Build the next step of your Japan-stock research with these related ATG Press guides.
- Japanese Earnings Reports and Kessan Tanshin — Read forecasts, dividend fields and revisions in Japanese results.
- EDINET Annual Securities Reports — Use statutory filings for deeper company and governance research.
- Japanese Stock Tickers, ADRs and ISINs — Match Tokyo listings with identifiers used by international investors.
Sources
- Japan Exchange Group, Company Announcements Service, accessed July 29, 2026.
- Japan Exchange Group, Overview of TDnet, accessed July 29, 2026.
- Japan Exchange Group, Listed Company Search, accessed July 29, 2026.
- Japan Exchange Group, English Disclosure via TDnet, accessed July 29, 2026.
- Japan Exchange Group, Availability of English Disclosure Information by Listed Companies, accessed July 29, 2026.
- Japan Exchange Group, Availability workbook as of June 30, 2026, downloaded July 29, 2026.
- Japan Exchange Group, TDnet API Service, accessed July 29, 2026.
- Japan Exchange Group, TDnet on Snowflake, accessed July 29, 2026.
- Financial Services Agency, EDINET, accessed July 29, 2026.
- Financial Services Agency, FSA launches new electronic corporate disclosure system, accessed July 29, 2026.
Disclaimer
This article is for informational purposes only and does not constitute investment advice.
